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BFSI · India

National bank goes from fragmented monitoring to unified defense.

One consolidated view across the security stack.

// Client overview

A leading national bank in India serving thousands of customers daily, operating across the country through an extensive network of branches, ATMs and digital banking services. The institution manages vast volumes of transactional and network data while holding significant amounts of sensitive customer information, including personal credentials, account details and transactional history.

India ranks among the most targeted countries globally for cyber threats, with a significant surge against the Banking, Financial Services and Insurance (BFSI) sector - data breaches, DDoS, ransomware, phishing, AI-driven threats, and cloud and endpoint risks at unprecedented pace. Cyber incidents cause operational disruption, financial loss, breaches of confidentiality and integrity, reputational damage and reduced competitiveness. National banks in India operate under the Reserve Bank of India (RBI) cybersecurity framework, which mandates stringent IT governance, risk management and incident-response protocols.

Sector
BFSI
Region
India
Engagement
Cyber transformation
Services
SIEM optimization & rebuild · Managed SOC (24/7×365) · Custom correlation & parsing · Compliance automation · Business Continuity Planning
Technologies
SIEM platform · Custom correlation rules & parsers · Compliance dashboards · DR-DC infrastructure · Core Banking System (CBS) integration · iSMART2 (AI-driven SOC)
// Key challenges
Limited visibility into security events due to incompatible log-source onboarding.
Absence of early-warning mechanisms for credential misuse, VPN compromise and lateral-movement attacks.
Lack of centralized threat monitoring across multiple branches and applications.
Inconsistency in compliance and audit reporting due to manual, error-prone processes.
Misconfigurations in SIEM led to ineffective log ingestion and monitoring gaps.
Inconsistent business-continuity planning raised concerns about resilience during a crisis.
// The solution · highlights
Reviewed the bank's existing security architecture and nationwide network, then built a scalable, secure, resilient SOC on the SIEM platform ensuring 24/7×365 visibility, detection and response across all branches, ATMs and online services via a structured, phased approach.
Configurational gap assessment: deep-dive assessment of the existing SIEM environment, rebuilding configurations to eliminate inefficiencies and misconfigurations.
Custom correlation-rule development: designed and deployed 40+ custom correlation rules covering ATM fraud patterns, privilege-escalation attempts and unauthorized-access attempts.
Custom parser development and log onboarding: built tailored parsers integrating Core Banking System (CBS), firewalls, antivirus logs, Windows servers, proxy and ATM-switch logs into the SIEM.
Business Continuity Planning (BCP): developed a robust BCP and validated resilience through Disaster Recovery-Data Center (DR-DC) drill scenarios.
Compliance automation: designed compliance dashboards aligned with the RBI Cybersecurity Framework and automated scheduled reporting for RBI audits, IS audits and internal reviews.
// Outcome & benefits
Enhanced security visibility: custom parsers and correlation rules enabled near real-time detection of credential misuse, VPN anomalies and lateral movement.
Improved detection accuracy: false positives reduced by 65%, allowing SOC teams to focus on genuine threats.
Compliance automation: dashboards and automated reports streamlined audit readiness, cutting manual effort and improving consistency for regulatory submissions.
Resilience and availability: DR-DC drills validated high availability, ensured configuration-backup integrity and strengthened disaster readiness.
Operational efficiency: standardized parsing, fine-tuning and use-case implementation reduced manual troubleshooting and lowered operational overhead.
// By the numbers · ROI
False positives reduced by 65%.
40+ custom correlation rules deployed.
Custom parsers built for multiple critical log sources.
24/7×365 monitoring established across all branches, ATMs and online services.
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